Re: [ck] Re: 2.6.8.1-ck7, Two Badnessess, one dump.

[Joshua Schmidlkofer]

> Is your drive idle while applying dma settings? Current 2.6 kernels
> aren't even close to being safe to modify drive settings, since it makes
> no effective attempts to serialize with ongoing commands. I have a
> half-assed patch to fix that.
>
>  

No it isn't!!  But I think that would be the problem.  I just realized 
that [after you wrote this] that I turned on 'parallel' execution in my 
Gentoo init scripts for both of those systems.


Tonight, I am going to change hdparm so that it runs xfs_freeze on all 
fs's just before tuning, and [of course un-freeze] to see if that cures it.

thanks,
 Joshua

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